updating doc.

1 files changed, 9 insertions, 2 deletions

diff --git a/doc/docs/doc/README.md b/doc/docs/doc/README.md
index 3e94c9c..f23a407 100755
--- a/doc/docs/doc/README.md
+++ b/doc/docs/doc/README.md
@@ -147,7 +147,9 @@ f!
 ]],{
   implicit_return_root = true,
   reserve_line_number = true,
-  lint_global = true
+  lint_global = true,
+  space_over_tab = false,
+  target = "5.4"
 })
 ```
 
@@ -160,17 +162,22 @@ Usage: yue [options|files|directories] ...
 
    -h       Print this message
    -e str   Execute a file or raw codes
+   -m       Generate minified codes
    -t path  Specify where to place compiled files
    -o file  Write output to file
    -s       Use spaces in generated codes instead of tabs
-   -m       Generate minified codes
    -p       Write output to standard out
    -b       Dump compile time (doesn't write output)
+   -g       Dump global variables used in NAME LINE COLUMN
    -l       Write line numbers from source codes
    -v       Print version
    --       Read from standard in, print to standard out
             (Must be first and only argument)
 
+   --target=version  Specify the Lua version codes the compiler will generate
+                     (version can only be 5.1, 5.2, 5.3 or 5.4)
+   --path=path_str   Append an extra Lua search path string to package.path
+
    Execute without options to enter REPL, type symbol '$'
    in a single line to start/stop multi-line mode
 ```